Finding the Fourth Proportional to 1,924.56, 2,886.52 and 691.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,924.56 : 2,886.52 = 691.72 : x
2. Step 2: Convert to fraction form
   1,924.56/2,886.52 = 691.72/x
3. Step 3: Cross multiply
   1,924.56x = 2,886.52 × 691.72
4. Step 4: Simplify right side
   1,924.56x = 1,996,663.61
5. Step 5: Solve for x
   x = 1,996,663.61/1,924.56
6. Step 6: Final answer
   x = 1,037.46